Biennial Health Insurance Surveys

New results from the Commonwealth Fund Biennial Health Insurance Survey, 2014, indicate that the Affordable Care Act's subsidized insurance options and consumer protections reduced the number of uninsured working-age adults from an estimated 37 million people, or 20 percent of the population, in 2010 to 29 million, or 16 percent, by the second half of 2014.

Eighty-four million people―nearly half of all working-age U.S. adults―went without health insurance for a time last year or were underinsured because of high out-of-pocket costs relative to income, according to a new study based on findings from the Commonwealth Fund’s 2012 Biennial Health Insurance Survey.

The proportion of working-age Americans who have medical bill problems or who are paying off medical debt climbed from 34 percent to 41 percent between 2005 and 2007, bringing the total to 72 million, according to the 2007 Biennial Health Insurance Survey.